Hair drier



R. A. OLSEN Oct. 9, 1934.

HAIR DRIER Filed Oct. 28, 1933 INVENTOR Rua- A.

ATTORNEY Patented a. 9, 1934 i 1,976,509

V UNITED STATES PATENT OFFICE I I 1,976,509 it I Q HAIR DRIER Reuben A. Olsen, Excelsior, Minn. 1 Application October 28, 1933, Serial No. 695,652

6 Claims. (01. 34-26) This invention relates to hair driers, particufan 12 is of the propeller or radial thrust type, larly of the air recirculating type, such as illusand when operated functions to create a down trated for instance in my copending application, draft of air about the dome' 7 and into the Serial No. 646,380, filed December 9th, 1932, and interior thereof through a series of spacedholes the primary object is to provide in conjunc- 13. The air thus passing through the holes 60 tion and combination with the drier mechanism, or ports 13 to the interior of the mask 7 .is not an air filtering unit, which will effectively discharged from the unit, however, but is dicleanse the air so that it will not return to the verted back through openings 14 which aredepatients head laden with dust, dirt, germs, and fined by short sleeves-or collars 15 that connect 1 other undesirable foreign matter, but will mainthe members 6 and 7 at spaced points so as to 65:

tain the drying air in a sanitary and clean direct the return flow of air into the annular condition at all times. A further object is to chamber 9 and without permitting itrto in any provide an air filtering and purifying unit,'for way reenter the annular chamber 8. Thus it a'hair drier, that is extremely simple in conwill be seen that the air current created by the struction, and in which the filtering medium fan 12 will pass into the, interior of the dome 70'. is a low cost yet efiicient substance,- and can be 7 at spaced points about the head .having the replaced by an inexperienced operator in a very hair to be dried, andafter being briefly circushort time and with little effort. These and lated t ug S h a l is then Withdrawn other more detailed and specific objects will be through the Openings other spacedepoints,

disclosed in the course of the following specifi and from thence passes up through theannular 75. cation, reference being had to the accompanying chamber '9, all as indicated by the direction drawing, wherein: arrows; I

Fig. 1 is a side elevation of a hair drier equip- The fan 12 is carried .on and driven by the pod with my invention. shaft 16 of an electric motor 17 rigidly secured Fig. 2 is an enlarged sectional elevation taken in a c p like structure 18. This cup 13,.t0gethe1" 80 diametrically through the drier as shown in with a cap dome member are r idly Fig, 1, cured, as by screws 20 and spacer bars 21, to a Fig. 3 is a perspective view of the filter unit ring 22 at theupp end of the Shell Heating employed in the drier, and showing a'corner elements 23 are arranged, preferably in the space portion of the air purifying element as turned beteween the bars 21 and cup 18, and their purback to better illustrate the fastening means. pose is to heat the air passing downwardly The drier construction proper follows, in genthrough the annular passageway at this point eral, the plan of that disclosed in my aforemenand to the shell '7. tioned application Serial No. 646,380, and in- Immediately outwardly of the spacer rods 21, 35 eludes an outer, substantially cylindrical shell an annular opening or space 24 is provided be- 90 or housing 4 which incloses and carries the drytween the upper end of the housing 4 and the ing mechanism, and is, in turn, adjustably supouter edge of the dome 19. This space is arported on a suitable bracket or standard 5. ranged to snugly and detachably receive the Spaced Within the h n 4 are two inner shellfiltering ring or unit, such as illustratedin Fig. 40 like members 6 and 7, the latter of which may be 3, and this unit rests upon the ring 22 while a 5 referred to as a mask or inner dome, and it is band or flange 25 at its upper edge is arranged the enclosure defined by this dome that receives to close the opening 24 to prevent outside air or is placed over the head having the hair to from passing into the housing at this point. I be dried. The lower portions of the shell-like find it unnecessary to secure the filter unit in members 4, 6, and 7, are concentrically spaced position, as its weight holds it down in place,1 with respect to each other to provide an inner but it is desirable to provide the flange 25 with annular chamber 8 and an outer annular chama pair of 7 small knobs 27 to facilitate lifting the her 9, and the lower ends of these chambers unit out of the drier. are closed by an integral flange portion 10 of The filter unit comprises an annular skeleton the dome 7 which extends outwardly as shown framework including the band or rim 25, and a 105 in Fig. 2 to receive the lower end edges of the zig-zag, openwork frame unit 26 extending rigmembers 4 d idly therefrom. The frame-unit 26 serves as a The inner annular chamber 8 terminates above pp for the filtering material W ch is the dome '7 in a relatively large central chamber wrapped abo and this material preferably 11, in which operates a fan or blower 12. The consists of a piece of conventional bandage I10 gauze may be secured in place upon the skeleton frame in any suitable manner, but I have found it very practical and efiicient to provide one of the frame bars, 26a, with oppositely directed prongs 29 upon which opposite ends of the gauze strip may be releasably attached.

It will now be readily seen and understood that with thefilter unit in, place and the drier in operation all of the air passing outwardly through the openings 14, from the hair being treated, will move in an annular stream or current up;

through the passageway 9 and will of necessity pass through the filtering material before beingheated and returned tothe patients head, and this filtration of the air will result in the advantage first above noted. l v

It is understood that suitable modifications may be made in the structure as disclosed, pro vided such modifications come within the spirit and scope of the'appended claims. l-Iaving now therefore fully illustrated and described my invention, whatlclaim .to be new and desire to protect by Letters Patent is: a

. la-In a hair drier, an outerdome shaped housing having a head receiving, perforate ,hood at itslower end, means Within the housing for crew ating an air current andrecirculating the same through saidperforate hood, said housing having intermediate its. ends an outwardlyopeningrecess extending annularly thereabout, a-circular skeleton frame removably disposed in said recess and when in place therein traversing the path of recirculated air travel, and a filter 'ele'ment carried by said skeleton frame. a

' 2. In a hair drier, an outer dome shaped hous ing having a head receiving perforate hoodat its lower end, means within the housing for cree ating an air current and recirculating the same through said perforate hood, said. housing having intermediate its ends an outwardly opening recess extending annularly thereabout, a circular skeleton frame .removably disposed said recess and when in place therein traversing the path'of recirculated. air travel, and means for releasably securing a filtering cloth to said frame. I 1 I 3. In a hair drier, an outer dome shaped housing having; a head receiving perforate hood at its lower end, -means Within the housing for creating an air current and recirculating the same through said perforate hood, said housing having intermediate its ends an outwardly opening recess extending annularly thereabout, a circular skeleton frame removably disposed in said recess and when in place therein traversing the path of recirculated air travel, and means for releasably securing a filtering cloth to said frame, said securing means comprising a plurality= of prongs extending from the frame.

4. In a hair drier, an outer dome shaped housing having a head receiving perforate hood at its lower end, means Within the housing for creating an air current and recirculating the same through said perforate hood, said housing being.

provided adjacent one end with an outwardly opening annular recess, a substantially cylindrical frame reniovably seated in said recess and when .so seated traversing the path of recirculated'air travel, and means for securing a filteringmedium to saidrframe. I

-5. In a hair drier, an outerdome shaped hous ing having a head receiving-perforate hood at its lower end, means withinthe housing for creat-, ing anair current and recirculating thesame through said perforate hood, said housing being provided adjacent one end with an outwardly opening annular recess, a substantially cylindrical frame removably seated insaidrecess and when, soseated traversing the path of recircu-v lated air travel,- a strip of filtering material wrapped, circumferentially about the frame, and means for releasably engaging the strip ends to thereby detachably; secure the, material strip to the frame. I

6. In a hair drier, an outer dome shaped housing having a head receiving perforate hood at its lower end, means within-the housing for creatingan air current and recirculating the same through said perforate hood, said housing being provided adjacent one end with an outwardly opening annular recess, a substantially cylindrical. frame removably seated in said recess and when so seated traversing the path of recirculated' air; travel andmeans for securing a filteringmediumto said frame, said cylindrical frame being provided at one end edge with a rim adapted to close the annular recess so that when the frame-is in place 'such'rim will preventair enteringthe housing through the recess.

REUBEN "A. OLSEN. 

